Still have an issue with the touch calibration. With a mouse I can get to 100% of the screen, but with touch there is a ~1/4" "dead" space along all edges (top, bottom, left and right). This is a major issue since you can't use any buttons that are located close to the edges or the normal location for scroll controls on the right side.

Is there a way to calibrate the touchscreen? If not, this display is not suitable for most Windows 10 IoT Core applications.

The AR1100 (Resistive Touch Screen Controller IC) shows up like a USB mouse, it works on all operating systems as the computer doesn't know it's a touch screen, it just thinks its a mouse. You can adjust the AR100 to consider itself a Touch Digitizer, supported by many but not all computers.

If you have a Raspberry Pi available you may re-calibrate the touch IC via USB using the following program:

This is with a full screen canvas. The yellow is with a standard mouse and the blue lines is as far as the touchscreen will work with a stylus. The dead space is the same with Win 10, Win 10 IoT Core and Linux.